An expert-written summary of a topic without a fixed, reproducible search method.
A narrative review synthesises literature on a topic based on the author's expertise and selective reading, rather than a pre-registered, systematic search-and-appraisal process. This makes it useful for broad context and expert perspective, but prone to selection bias and harder to reproduce or verify than a systematic review. Quality varies widely, so readers should weigh the authors' expertise and transparency about their sources.
This guide was auto-drafted and is pending editorial review.